#B15604
Closest named color: Burnt Siena (#B75203). oklch(55.5% 0.141 52.1), rgb(177, 86, 4).
Aa
White text reads best on this color (4.99:1).
About this color
#B15604 is a medium-dark, vivid orange. In OKLCH its lightness is 56%, its chroma 0.141 and its hue 52°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Siena (#B75203), ΔE 0.013 away. White text reads best on it, at 4.99:1.
| Hue family | Oranges |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.141) |
| Temperature | warm |
| Nearest name | Burnt Siena (#B75203) |
| Black text | 4.20:1 |
| White text | 4.99:1 |
Values
| HEX | #B15604 |
| RGB | rgb(177, 86, 4) |
| HSL | hsl(28, 96%, 35%) |
| OKLCH | oklch(55.5% 0.141 52.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #B15604 | 4.99:1 | AA | Lc -79.4 | Fine for body text |
| Black text on #B15604 | 4.20:1 | AA large text | Lc 30.1 | Non-text elements, placeholder text |
| #B15604 text on white | 4.99:1 | AA | Lc 73.9 | Content text, not long reading |
| #B15604 text on black | 4.20:1 | AA large text | Lc -27.8 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#FAF4F0
oklch(97.1% 0.008 56.3)
-
Step 100
100
#F4E7DF
oklch(93.6% 0.018 54)
-
Step 200
200
#EDD3C4
oklch(88.4% 0.036 52)
-
Step 300
300
#E3B69B
oklch(81% 0.064 52.5)
-
Step 400
400
#D38E64
oklch(70.7% 0.102 51.8)
-
Step 500
500
#C67036
oklch(63.1% 0.13 52)
-
Step 600
600 (this color)
#B15604
oklch(55.5% 0.141 52.1)
-
Step 700
700
#964700
oklch(49% 0.126 51.9)
-
Step 800
800
#7C3A02
oklch(42.8% 0.109 51.8)
-
Step 900
900
#64330F
oklch(37.8% 0.085 52.6)
-
Step 950
950
#3B1E0B
oklch(27.1% 0.054 51.6)
#B15604 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #716300 | 0.119 |
| Deuteranopia (no green cones) | #877700 | 0.108 |
| Tritanopia (no blue cones) | #C34149 | 0.086 |
| Achromatopsia (no color) | #6F6F6F | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B15604
#B15604
oklch(55.5% 0.141 52.1)
- #007DAA
#007DAA
oklch(55.4% 0.114 232.6)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #B15604, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Siena #B75203 ΔE 0.013
- Cinnamon #AC4F06 ΔE 0.020
- Orangey Brown #B16002 ΔE 0.023
- Raw Umber #A75E09 ΔE 0.024
- Burnt Orange #C04E01 ΔE 0.031
- Copper #B66325 ΔE 0.033
- Umber #B26400 ΔE 0.033
- Rust Orange #C45508 ΔE 0.036
Use #B15604 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.